Joseph l



(No Model.)

J. L. COX. ROTARY WEB SBVERING MACHINE.

Patented Dec. 15, 1891.

WIIJVESSES UNITE STATE PATENT ()FFICE.

JOSEPH L. COX, OF BATTLE GREEK, MICHIGAN, ASSIGNOR TO THE DUPLEX PRINTING PRESS COMPANY, OF SAME PLACE.

ROTARY WEB-SEVERING MACHINE.

.EEIECIFICATION forming part of Letters Patent No. 465,428, dated December 15,1891.

Application filed January 19, 1891- Serial No. 378,195, (No model.)

To all whom it may concern.-

Be it known that I, JOSEPH L. COX, of Battle Creek, in the county of Calhoun and State of Michigan, have invented certain new and useful Improvements in Rotary \Veb-Severing Machines; and I do hereby declarethat the following is a full, clear, and exact deseription thereof, reference being had to the accompanying drawings, and to the letters of I reference marked thereon, which form part of this specification, in which Figure 1 represents a diagrainmatical section of a mechanism for severing sheets of paper from a web or roll thereof. Fig. 2 is a detail view.

My present invention is an improvement in paper-cutting machinery, being especially designed for cutting sheets of paper from a web 45 f the gripping-fingers thereof.

struction and combination of parts hereinafter clearly described and claimed.

The invention is especially designed for use in connection with cylinder printing machines, and is indicated in the drawings as combined with such a press.

Referring to the drawings by letters, A B O designate three calender or feed rolls of equal size and inter-geared.

D E designate the cutting-rolls, mounted beside the calenders. Roll D has a longitudi- -nal knife (Z attached .to its periphery, and

roll E a longitudinal groove 2, adapted to register and coact with knife d in severing the web.

F designates the cylinder-of the press, and

G and g designate upper and lower coacting endless tapes running over proper rollers or idlers journaled in the frame of the machine (not shown) and adapted to direct the web of paper from the rolls D E to the cylinder F. The lower tapes g run over a roller H, beside roll E, back toward cylinder F, under a roller L, over an adjustable roller I, mounted in adjustable bearings 1' on the frame of the press, thence to and over a roll J below cyl- 5 ind er F, then back over and under idler-rollers K K and a tightener-roller 70,-as indicated in the drawings, and back to roller I I. The upper tapes G run from a roller h, parallel with and above roller H, back under roller L, up over roller I, back under a roller M beside the cylinder F, but above roll J, thence up under an idler or tightener roller m, and over a roller N back to roller h. I The tapes thus travel parallel from rollers II h to roller M, and are adapted to carry forward the sheet or web of paper. Rollers I L are so set that the portions of the tapes moving between them are nearly at right angles to the portions between rollers H L and I M, thus making a double bend in the line of travel of the tapes where they are, in contact or directly opposed, so that the sheet or web will be, in a measure, pinched or gripped by the tapes in passing between the rollers I L.

O 0 designate fenders for directing the web from the calenders between rolls D E and from said rolls between tapes G g. The rolls D and E are intergeared and travel at a uniform speed.

P designates a gear-wheel journaled on a movable bracket-arm Q, which can be fixed in any position desired by a set-screw q, play ing through a slot in the arm or any other convenient fastening. Gear P meshes with the gear on the lower roll E and with the gear on the lower calender C, so as to drive the calenders from the rolls. The rolls are driven by gearing and'shafting direct'from the shaft of cylinder F, as indicated in the drawings, so that the rolls make one revolution for each revolution of the. cylinder. The gear P can be removed and another gear of-different size substituted, so as to change the speed of the calenders, and if the speed of the calenders is changed of course the amount of paper fed in by them between the rolls will be correspondingly altered. The bracket Q enables gear P to be shifted into engagement with the gears on the roll and calender.

The operation is as follows: The Web of paper to is drawn from roll W between the calenders A B O, as indicated, and fed therefrom between rolls D E, the amount of paper being fed between the rolls for each revoluand at this moment the knife (I coacts with groove e and cuts the web. The tapes instantly hurry the severed sheet forward to the cylinder, where it is gripped by fingers f and taken from the tapes. This operation is repeated for each sheet. The rollers IL are so located that they will always cause the web to be drawn taut by tapes G g just beforethe knife cl comes into action, so that, thoughthe speed of the rolls may be more than the speed of the calenders, and consequentlythan the speed of the Web of paper fed in by the calenders, yet there will be no tearing or jerking of the web by the knife, as the tapes bring it taut before the knife acts, and they also draw forward the severed sheet out of the way of the knife.

Preferably rollsD E are of such diameter 'thattheir circumference is equal to or'greater than the length of the longitudinal sheet of paper to be cut. Roll D is also provided with a series of annular felt bands 0" 1', which serve to coax the paper forward beneath the rolls.

Having described myinvention, What I claim as new, anddesire to secure by Letters Patentthereon, is

1.-The combination of the calenders, the cutting-rolls beside the same provided with coaxing-bands, and the adjustable gear for driving the calenders from the rolls, substantiallyas described.

2. The combination of the cutting-rolls, the feed-calenders and the coaxing-tapes having a bend in the line of travel of their contiguous portions and receiving the web from the calenders, and the adjustable gearing between the cutting-rolls and calenders, and means for accelerating the speed of the tapes, substantially as set forth.

3. The combination of the cylinder, the cutting-rolls, and the gearing for revolving the same during each revolution of the cylinder, for the purpose specified, with the calenders and the gearing between the calenders and cutting-rolls, substantially as described.

4. The combination of the cylinder, the cutting-rolls, and the feed-calenders driven by gearing from the rolls, with the coaxing-tapes for directing the web or sheets from the cut ters to the cylinders and having a bend in the line oftravel oftheir contiguous portions, and means for speeding said tapes, substantially as described.

5. The combination of the upper and lower tapes, the intermediate fixed and adjustable rollers for making a bend in the adjoining portions of the-tapes, and theindependentlyadjustable tightener-rollers for the tapes, with the paper feed and cutting devices and means for speeding the tapes, substantially as and'for the purpose described.

6. The combination of the feed-calenders,

the cylinder, the cutting-rolls drivenby gear-' :speed of the tapes,-substantially-as described.

In testimony that I claim the foregoing as my own I affix my signature in presence of two witnesses.

JOSEPH L. COX.

Witnesses:

T. H. ALEXANDER, S. BRASHEARS. 

